CN101715211A - Method and device for setting transmission mode - Google Patents
Method and device for setting transmission mode Download PDFInfo
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- CN101715211A CN101715211A CN200910209642A CN200910209642A CN101715211A CN 101715211 A CN101715211 A CN 101715211A CN 200910209642 A CN200910209642 A CN 200910209642A CN 200910209642 A CN200910209642 A CN 200910209642A CN 101715211 A CN101715211 A CN 101715211A
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- H04W72/20—Control channels or signalling for resource management
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Abstract
The invention discloses a method and a device for setting a transmission mode. The method comprises the following steps: a base station generates descending control information based on a descending control information format in a transmission mode, wherein the descending control information format comprises at least one of the following items: descending control information format 1A, descending control information format 1E and descending control information format 2B; and the base station sends the descending control information to user equipment. The invention ensures the flexibility of the system scheduling and provides convenience to practical use.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of method to set up and device of transmission mode.
Background technology
Long Term Evolution (Long Term Evolution, abbreviating LTE as) radio frames (radio frame) in the system comprises Frequency Division Duplexing (FDD) (Frequency Division Duplex, abbreviate FDD as) frame structure of pattern and time division duplex (Time Division Duplex abbreviates TDD as) pattern.
Fig. 1 is the schematic diagram according to the frame structure of the fdd mode of correlation technique, as shown in Figure 1, the radio frames of one 10 milliseconds (ms) is 0.5ms by 20 length, and the time slot (slot) of numbering 0～19 is formed, and it is subframe (subframe) i of 1ms that time slot 2i and 2i+1 form length.
Fig. 2 is the schematic diagram according to the frame structure of the tdd mode of correlation technique, as shown in Figure 2, the radio frames of a 10ms is longly formed for the field of 5ms (half frame) by two, and a field comprises that 5 length are the subframe of 1ms, and subframe i is defined as 2 and longly is time slot 2i and the 2i+1 of 0.5ms.In above-mentioned two kinds of frame structures, for standard cyclic prefix (Normal Cyclic Prefix abbreviates Normal CP as), the symbol that it is 66.7 microseconds (us) that time slot comprises 7 length, wherein the CP length of first symbol is 5.21us, and the length of all the other 6 symbols is 4.69us; For extended cyclic prefix (Extended CyclicPrefix abbreviates Extended CP as), a time slot comprises 6 symbols, and the CP length of all symbols is 16.67us.
The version number of LTE is corresponding to R8 (Release 8), and its version number that increases the version correspondence is R9 (Release 9).Following three kinds of downlink physical control channels have been defined among the LTE: physical down control format indicating channel (Physical Control Format IndicatorChannel, abbreviate PCFICH as,), the automatic repeat requests indicating channel of physical mixed (Physical Hybrid Automatic Retransmission Request IndicatorChannel, abbreviate PHICH as) and Physical Downlink Control Channel (Physical DownlinkControl Channel abbreviates PDCCH as).
Wherein, the PCFICH loaded information is used in reference to OFDM (the Orthogonal Frequency Division Multiplexing that is shown in transmission PDCCH in the subframe, abbreviate OFDM as) number of symbol, on first OFDM symbol of subframe, send, the place frequency location is determined by system descending bandwidth and cell ID (Identity abbreviates ID as).
PHICH is used to carry acknowledgement/non-acknowledgement (ACK/NACK) feedback information of uplink transmission data.The number of PHICH, time-frequency position can be determined by system message and the sub-district ID in the Physical Broadcast Channel (Physical Broadcast Channel abbreviates PBCH as) of the descending carrier at PHICH place.
PDCCH is used for bearing downlink control information (Downlink Control Information abbreviates DCI as), comprising: uplink and downlink schedule information, and uplink power control information.The form of DCI (DCI format) is divided into following several: DCI format 0, DCI format1, DCI format 1A, DCI format 1B, DCI format 1C, DCI format 1D, DCI format 2, DCI format 2A, DCI format 3 and DCI format 3A etc.; Wherein:
Particularly, DCI Format 1A information transmitted territory is as follows:
1 bit is used to select DCI Format 0 or DCI Format 1A;
1 bit is used to select the resource distribution mode of localized virtual resource block (Localized Virtual ResourceBlock abbreviates LVRB as) or distributed virtual resource block (Distributed VirtualResource Block abbreviates DVRB as);
Bit is used for resource block assignments (Resource BlockAssignment), wherein, and N
RB DLRepresent descending bandwidth, represent with the quantity of Resource Block (Resource Block abbreviates RB as).
5 bits are used to indicate modulation coding mode (Modulation and Coding Scheme abbreviates MCS as);
In the FDD system, 3 bits are used to mix automatic repeat requests (Hybrid AutomaticRepeat-reQuest abbreviates HARQ as) process number; In the TDD system, 4 bits are used for HARQ process number.
1 bit is used for new data indication (New Data Indicator abbreviates NDI as);
2 bits are used to indicate redundancy versions (Redundancy Vertion abbreviates RV as);
2 bits are used for the through-put power control (Transmit Power Control abbreviates TPC as) of Physical Uplink Control Channel PUCCH;
2 bits are used for descending allocation index (DAI), and this function only needs in the uplink-downlink configuration of TDD system, does not need in the FDD system;
16 bits are used for cyclic redundancy check (CRC) (Cyclic Redundancy Check abbreviates CRC as);
The physical resource of physical downlink control channel PDCCH transmission is with control channel element (Control Channel Element, abbreviate CCE as) be unit, the size of a CCE is 9 resource element groups (Resource Element Group, abbreviate REG as), i.e. 36 resource elements (Resource Element), a PDCCH may take 1,2,4 or 8 CCE.These four kinds of PDCCH sizes for taking 1,2,4,8 CCE adopt tree-shaped polymerization (Aggregation), and the PDCCH that promptly takies 1 CCE can be from any CCE position; The PDCCH that takies 2 CCE is from even number CCE position; The CCE position of the integral multiple of the PDCCH that takies 4 CCE since 4; The CCE position of the integral multiple of the PDCCH that takies 8 CCE since 8.
Each polymerization rank (Aggregation level) definition search volume (Searchspace) comprises the search volume of public (common) and the search volume of subscriber equipment (UserEquipment abbreviates UE as) proprietary (UE-Specific).OFDM symbolic number that the controlled area that the CCE number of whole search volume is indicated by PCFICH in each descending sub frame is shared and the group number of PHICH are determined.UE DCI format by transmission mode of living in the search volume carries out blind Detecting to all possible PDCCH code checks.
UE is set to based on following a kind of transmission mode (transmission mode) by high-level signaling semi-static (semi-statically), receives the PDSCH transfer of data according to the indication of the PDCCH of the search volume of subscriber equipment proprietary (UE-Specific):
Pattern 1: single antenna port; Port 0 (Single-antenna port; Port 0)
Pattern 2: transmit diversity (Transmit diversity)
Mode 3: Open-Loop Spatial Multiplexing (Open-loop spatial multiplexing)
Pattern 4: Closed-Loop Spatial Multiplexing (Closed-loop spatial multiplexing)
Pattern 5: multi-user's multiple-input and multiple-output (Multi-user MIMO)
Pattern 6: closed loop Rank=1 precoding (Closed-loop Rank=1 precoding)
Mode 7: single antenna port; Port 5 (Single-antenna port; Port 5)
If UE is set to Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell RadioNetwork Temporary Identifier by high level, abbreviate C-RNTI as) cyclic redundancy check (CRC) (the Cyclical Redundancy Check of scrambling, abbreviate CRC as) carry out PDCCH decoding, then UE should be according to the respective sets incompatible decoding PDCCH PDSCH relevant with all of definition in the table 1:
Table 1
If UE is set to semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Semi-persistently Scheduled Cell Radio Network TemporaryIdentifier by high level, abbreviating SPS C-RNTI as) CRC of scrambling carries out the PDCCH decoding, and then UE should be according to the respective sets incompatible decoding PDCCH PDSCH relevant with all of definition in the following table 2:
Table 2
Distinguishingly, when UE is carried out the PDCCH decoding by the CRC that high level is set to SPS C-RNTI scrambling, and semi-persistent scheduling is when being activated, and the information bit of DCI Format 1A will have following variation:
Be used to indicate in 5 bits of modulation coding mode (Modulation and Coding Scheme abbreviates MCS as), the bit of highest significant position (Most Significant Bit abbreviates MSB as) also is leftmost bit, will be set to 0.
In the FDD system, be used for 3 bits of HARQ process number, and in the TDD system, 4 bits that are used for HARQ process number all will be set to 0.
1 bit that is used for new data indication (New Data Indicator abbreviates NDI as) will be set to 0.
Be used to indicate 2 bits of redundancy versions will be set to 0.
In transmission mode 7, based on the transmission of single antenna port 5, belong to a kind of order and be 1 non-code book spatial multiplexing mode, also belong to a kind of single current Beamforming (wave beam forming) The Application of Technology; And at present in order to strengthen the performance of descending non-code book transmission means, in the enhancing version R9 of LTE, a kind of new transmission means has been proposed, belong to a kind of order and be 2 non-code book spatial multiplexing mode, just adopted the transmission of two antenna ports of double-current Beamforming (wave beam forming) technology.
For this reason, needing to define a kind of new transmission mode in R9 comes corresponding to dual-stream beamforming (Beamforming) technology.Just as the definition among the R8, this new transmission mode needs a plurality of DCI Format to support, wherein, will adopt a kind of new DCI Format 2B in subscriber equipment proprietary (UE specific) search volume of C-RNTI definition.But in existing technical scheme, will represent which transmission means and how indicate and distinguish these transmission meanss all do not have to determine to DCI Format, thereby make troubles to practical application based on DCI Format 1A.
Summary of the invention
At in R9, not defining transmission mode corresponding to the dual-stream beamforming technology, which thereby can't determine to represent transmission means and how to indicate and distinguish the problem of these transmission meanss and propose the present invention to DCI Format based on DCI Format 1A, for this reason, main purpose of the present invention is to provide a kind of method to set up and device of transmission mode, one of to address the above problem at least.
To achieve these goals, according to an aspect of the present invention, a kind of method to set up of transmission mode is provided, comprise: the base station is according to the descending control information format in the transmission mode, generate Downlink Control Information, wherein, descending control information format comprise following one of at least: descending control information format 1A, descending control information format 1E and descending control information format 2B; The base station sends Downlink Control Information to subscriber equipment.
Preferably, when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, descending control information format 1E represents the transmission means of individual layer transmission in the proprietary search volume of subscriber equipment, perhaps comprise the transmission means of the transmission means of the transmission means of individual layer transmission and transmission diversity simultaneously.
Preferably, below the signaling among the descending control information format 1E indication one of at least: the antenna port when adopting the transmission means of individual layer transmission; Antenna port when adopting the transmission means of individual layer transmission, and the initialization index N_scid in the pilot frequency sequence design; Adopt the transmission means of individual layer transmission or the transmission means of transmission diversity, and the antenna port the during transmission means of individual layer transmission; Adopt the transmission means of individual layer transmission or the transmission means of transmission diversity, the antenna port the during transmission means of individual layer transmission, and the initialization index N_scid in the pilot frequency sequence design.
Preferably, the signaling among the descending control information format 1E comprises: newly-increased K bit signalling, form 0 or form 1A select signaling, resource distribution mode selection signaling, signaling of resource block assignments, modulation coding mode signaling, hybrid automatic repeat request process to count signaling, new data is represented signaling, redundancy edition signaling, through-put power control signaling, allocation index signaling and cyclic redundancy check (CRC) signaling.
Preferably, it is one of following that descending control information format 1E utilizes the signaling among the descending control information format 1E to indicate to comprise: when descending control information format 1E is used to represent the transmission means of individual layer transmission, and the antenna port when descending control information format 1E utilizes resource distribution mode to select signaling or the newly-increased signaling indication of 1 bit to adopt the transmission means of individual layer transmission; When descending control information format 1E is used to represent the transmission means of individual layer transmission, descending control information format 1E utilizes resource distribution mode to select signaling and the newly-increased signaling of 1 bit, antenna port when perhaps adopting the newly-increased signaling of 2 bits to indicate the transmission means that adopts the individual layer transmission and the initialization index N_scid in the pilot frequency sequence design; When descending control information format 1E is used to represent to comprise simultaneously the transmission means of transmission means of the transmission means of individual layer transmission and transmission diversity, descending control information format 1E utilizes resource distribution mode to select signaling and the newly-increased signaling of 1 bit, perhaps adopt the transmission means of the newly-increased signaling indication individual layer transmission of 2 bits or the transmission means of transmission diversity, the antenna port when adopting the transmission means of individual layer transmission is antenna port 7 or antenna port 8; When descending control information format 1E is used to represent to comprise simultaneously the transmission means of transmission means of the transmission means of individual layer transmission and transmission diversity, descending control information format 1E utilizes resource distribution mode to select signaling and the newly-increased signaling of 2 bits, and perhaps adopting transmission means, the antenna port when adopting the transmission means of individual layer transmission of the transmission means of the newly-increased signaling indication individual layer transmission of 3 bits or transmission diversity is the initialization index N_scid in antenna port 7 or antenna port 8 and the pilot frequency sequence design.
Preferably, when the cyclic check code in the descending control channel adopted the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, descending control information format 1A represented the transmission means of transmission diversity in publicly-owned search volume.
Preferably, when the cyclic check code in the descending control channel adopted the scrambling of semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, descending control information format 1A represented the transmission means of individual layer transmission in publicly-owned search volume and the proprietary search volume of subscriber equipment.
Preferably, below the signaling among the descending control information format 1A indication one of at least: the antenna port when adopting the transmission means of individual layer transmission; Antenna port when adopting the transmission means of individual layer transmission, and the initialization index N_scid in the pilot frequency sequence design.
Preferably, signaling among the descending control information format 1A comprises: form 0 or form 1A select signaling, resource distribution mode is selected signaling, signaling of resource block assignments, the modulation coding mode signaling, hybrid automatic repeat request process is counted signaling, the new data indication signaling, redundancy edition signaling, through-put power control signaling, descending allocation index signaling and cyclic redundancy check (CRC) signaling.
Preferably, descending control information format 1A utilizes signaling among the descending control information format 1A to indicate to comprise: the antenna port when descending control information format 1A utilizes the resource distribution mode among the descending control information format 1A to select the signaling indication to adopt the transmission means of individual layer transmission; Antenna port when descending control information format 1A utilizes the resource distribution mode among the descending control information format 1A to select signaling and following one of any signaling indication to adopt the transmission means of individual layer transmission and the initialization index N_scid in the pilot frequency sequence design: hybrid automatic repeat request process is counted signaling, new data is represented the highest significant position signaling in signaling, redundancy edition signaling, the modulation coding mode; Antenna port when descending control information format 1A utilizes following any two signalings indication among the descending control information format 1A to adopt the transmission means of individual layer transmission and the initialization index N_scid in the pilot frequency sequence design: hybrid automatic repeat request process is counted signaling, new data and is represented in the highest significant position signaling in signaling, redundancy edition signaling, the modulation coding mode.
Preferably, it is characterized in that after subscriber equipment sent Downlink Control Information, said method also comprised in the base station: subscriber equipment receives Downlink Control Information from the base station according to transmission mode, and obtains Downlink Control Information according to descending control information format.
Preferably, subscriber equipment receives Downlink Control Information, and obtain Downlink Control Information according to descending control information format and comprise: when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, subscriber equipment receives Downlink Control Information in publicly-owned search volume, and obtains Downlink Control Information according to descending control information format 1A; When the cyclic check code in the descending control channel adopted the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, subscriber equipment received Downlink Control Information in the proprietary search volume of subscriber equipment, and obtains Downlink Control Information according to descending control information format 1E; When the cyclic check code in the descending control channel adopts the scrambling of semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, subscriber equipment receives Downlink Control Information in publicly-owned search volume and the proprietary search volume of subscriber equipment, and obtains Downlink Control Information according to descending control information format 1A.
To achieve these goals, according to a further aspect in the invention, a kind of setting device of transmission mode also is provided, comprise: first generation module, be used for descending control information format according to transmission mode, generate Downlink Control Information, wherein, descending control information format comprise following one of at least: descending control information format 1A, descending control information format 1E and descending control information format 2B; First sending module is used for sending Downlink Control Information to subscriber equipment.
By the present invention, adopt the base station according to descending control information format, generate Downlink Control Information and send to subscriber equipment, wherein, descending control information format comprise following one of at least: descending control information format 1A, descending control information format 1E and descending control information format 2B, solved in R9 and do not defined transmission mode corresponding to the dual-stream beamforming technology, which thereby can't determine to represent transmission means and problem how to indicate and distinguish these transmission meanss to DCI Format based on DCI Format 1A, and then guaranteed the flexibility of system call to have made things convenient for practical application.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the frame structure of the fdd mode of correlation technique;
Fig. 2 is the schematic diagram according to the frame structure of the tdd mode of correlation technique;
Fig. 3 is the flow chart according to the transmission method of the embodiment of the invention;
Fig. 4 is the structured flowchart according to the transmitting device of the embodiment of the invention.
Embodiment
Functional overview
Consider in the correlation technique and in R9, do not define transmission mode corresponding to the dual-stream beamforming technology, which thereby can't determine to represent transmission means and problem how to indicate and distinguish these transmission meanss to DCI Format based on DCI Format 1A, the invention provides a kind of method to set up and device of transmission mode, adopt the base station according to descending control information format, generate Downlink Control Information and send to subscriber equipment, wherein, descending control information format comprises descending control information format 1E, be used to represent the transmission means of individual layer transmission, the transmission means that perhaps comprises the transmission means of the transmission means of individual layer transmission and transmission diversity simultaneously, to guarantee the flexibility of system call, make things convenient for practical application.
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Method embodiment
According to embodiments of the invention, provide a kind of method to set up of transmission mode.Fig. 3 is the flow chart according to the transmission method of the embodiment of the invention, and as shown in Figure 3, this method comprises that following step S302 is to step S304:
Step S302: the base station is according to descending control information format, generates Downlink Control Information, wherein, descending control information format comprise following one of at least: descending control information format 1A, descending control information format 1E and descending control information format 2B.
Particularly, when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, descending control information format 1E represents the transmission means of individual layer transmission in the proprietary search volume of subscriber equipment, the transmission means that perhaps comprises the transmission means of the transmission means of individual layer transmission and transmission diversity simultaneously, wherein, the individual layer transmission is meant the transmission means of single antenna port.
Particularly, below the signaling among the descending control information format 1E indication one of at least: the antenna port when adopting the transmission means of individual layer transmission; Antenna port when adopting the transmission means of individual layer transmission, and the initialization index N_scid in the pilot frequency sequence design; Adopt the transmission means of individual layer transmission or the transmission means of transmission diversity, and the antenna port the during transmission means of individual layer transmission; Adopt the transmission means of individual layer transmission or the transmission means of transmission diversity, the antenna port the during transmission means of individual layer transmission, and the initialization index N_scid in the pilot frequency sequence design.
Wherein, the signaling among the descending control information format 1E comprise following one of at least: newly-increased K bit signalling, form 0 or form 1A select that signaling, resource distribution mode select signaling, signaling of resource block assignments, modulation coding mode signaling, hybrid automatic repeat request process to count signaling, new data is represented signaling, redundancy edition signaling, through-put power control signaling, allocation index signaling and cyclic redundancy check (CRC) signaling.
Particularly, it is one of following that descending control information format 1E utilizes the signaling among the descending control information format 1E to indicate to comprise: when descending control information format 1E is used to represent the transmission means of individual layer transmission, and the antenna port when descending control information format 1E utilizes resource distribution mode to select signaling or the newly-increased signaling indication of 1 bit to adopt the transmission means of individual layer transmission; When descending control information format 1E is used to represent the transmission means of individual layer transmission, descending control information format 1E utilizes resource distribution mode to select signaling and the newly-increased signaling of 1 bit, antenna port when perhaps adopting the newly-increased signaling of 2 bits to indicate the transmission means that adopts the individual layer transmission and the initialization index N_scid in the pilot frequency sequence design; When descending control information format 1E is used to represent to comprise simultaneously the transmission means of transmission means of the transmission means of individual layer transmission and transmission diversity, descending control information format 1E utilizes resource distribution mode to select signaling and the newly-increased signaling of 1 bit, perhaps adopt the transmission means of the newly-increased signaling indication individual layer transmission of 2 bits or the transmission means of transmission diversity, the antenna port of correspondence is antenna port 7 or antenna port 8 when adopting the transmission means of individual layer transmission; When descending control information format 1E is used to represent to comprise simultaneously the transmission means of transmission means of the transmission means of individual layer transmission and transmission diversity, descending control information format 1E utilizes resource distribution mode to select signaling and the newly-increased signaling of 2 bits, perhaps adopting transmission means (that is, distinguishing the transmission of transmission diversity and individual layer), the antenna port when adopting the transmission means of individual layer transmission of the transmission means of the newly-increased signaling indication individual layer transmission of 3 bits or transmission diversity is the initialization index N_scid in antenna port 7 or antenna port 8 and the pilot frequency sequence design.
Particularly, when the cyclic check code in the descending control channel adopted the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, descending control information format 1A represented the transmission means of transmission diversity in publicly-owned search volume.
Particularly, when the cyclic check code in the descending control channel adopted the scrambling of semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, descending control information format 1A represented the transmission means of individual layer transmission in publicly-owned search volume and the proprietary search volume of subscriber equipment.
Wherein, below the signaling among the descending control information format 1A indication one of at least: the antenna port when adopting the transmission means of individual layer transmission; Antenna port when adopting the transmission means of individual layer transmission, and the initialization index N_scid in the pilot frequency sequence design.
Wherein, comprise following signaling among the descending control information format 1A: form 0 or form 1A select signaling, resource distribution mode is selected signaling, signaling of resource block assignments, the modulation coding mode signaling, hybrid automatic repeat request process is counted signaling, the new data indication signaling, redundancy edition signaling, through-put power control signaling, descending allocation index signaling and cyclic redundancy check (CRC) signaling.
Particularly, descending control information format 1A represents the transmission means of individual layer transmission, the antenna port when employing descending control information format 1A utilizes the resource distribution mode selection signaling among the descending control information format 1A to indicate the transmission means that adopts the individual layer transmission; Perhaps adopt resource distribution mode among the descending control information format 1A to select signaling and hybrid automatic repeat request process to count arbitrary signaling in the highest significant position signaling in signaling, new data indication signaling, redundancy edition signaling or the modulation coding mode, the initialization index N_scid in antenna port when indicating the individual layer transmission and the pilot frequency sequence design; Perhaps adopt hybrid automatic repeat request process among the descending control information format 1A to count wantonly two signalings in the highest significant position signaling in signaling, new data indication signaling, redundancy edition signaling or the modulation coding mode, the initialization index N_scid in antenna port when indicating the individual layer transmission and the pilot frequency sequence design.
Particularly, descending control information format 1A utilizes signaling among the descending control information format 1A to indicate to comprise: descending control information format 1A utilize the resource distribution mode among the descending control information format 1A select signaling and hybrid automatic repeat request process count arbitrary signaling indication in the highest significant position signaling in signaling, new data indication signaling, redundancy edition signaling or the modulation coding mode when adopting the transmission means of individual layer transmission antenna port and the initialization index N_scid in the pilot frequency sequence design; Descending control information format 1A utilize the hybrid automatic repeat request process among the descending control information format 1A count wantonly two signalings indication in the highest significant position signaling in signaling, new data indication signaling, redundancy edition signaling or the modulation coding mode when adopting the transmission means of individual layer transmission antenna port and the initialization index N_scid in the pilot frequency sequence design.
Step S304: the base station sends Downlink Control Information to subscriber equipment.
Then, subscriber equipment receives the Downlink Control Information from the base station, and obtains Downlink Control Information according to descending control information format.
Particularly, subscriber equipment receives Downlink Control Information, and obtain Downlink Control Information according to descending control information format and comprise: when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, subscriber equipment receives Downlink Control Information in publicly-owned search volume, and obtains Downlink Control Information according to descending control information format 1A; When the cyclic check code in the descending control channel adopted the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, subscriber equipment received Downlink Control Information in the proprietary search volume of subscriber equipment, and obtains Downlink Control Information according to descending control information format 1E; When the cyclic check code in the descending control channel adopts the scrambling of semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, subscriber equipment receives Downlink Control Information in publicly-owned search volume and the proprietary search volume of subscriber equipment, and obtains Downlink Control Information according to descending control information format 1A.
Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.
In R9, in order to support double-current Beamforming technology, needing increases a kind of new transmission mode X, and the preferred value of X is 8.Simultaneously, at the transmission means of the double antenna port of double-current Beamforming, need two new antenna ports 7 of definition and 8.
The present invention is directed to the double-current Beamforming technology that occurs among the R9 with and corresponding transmission mode X, when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, defined a kind of descending control information format DCI Format 1A, can be used for transmission means in publicly-owned search volume expression individual layer transmission (the individual layer transmission here refers to the transmission means of single antenna port), defined a kind of descending control information format DCI Format 1E in addition, expression individual layer transmission in the proprietary search volume of user comprises that perhaps individual layer transmits and the transmission means of transmission diversity.Simultaneously, the transmission means of in publicly-owned and the proprietary search volume of user, representing double-deck transmission or individual layer transmission with another kind of descending control information format DCI Format 2B.And when the cyclic check code in the descending control channel adopts the scrambling of semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, defined a kind of descending control information format DCI Format 1A, the transmission means of expression individual layer transmission in publicly-owned and the proprietary search volume of user.Simultaneously, the transmission means of in publicly-owned and the proprietary search volume of user, representing double-deck transmission or individual layer transmission with another kind of descending control information format DCI Format2B.
Information field that table 3 DCI Format 1A is included and corresponding size thereof
Information field that table 4 DCI Format 1E is included and corresponding size thereof
Wherein the big or small K of the initialization index N_scid information field of antenna port indication/pilot frequency sequence can select different sizes according to configurations different among the embodiment of back.
In following embodiment, will set forth severally with DCI Format 1A, DCI Format1E and DCI Format 2B represent the method for different transmission meanss.
Embodiment one:
In the present embodiment, the above-mentioned pattern X transmission plan in Common search volume and UE specific search volume has respectively been described.When the cyclic check code in the descending control channel adopted the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, in (that is, above-mentioned publicly-owned search volume), DCI Format 1A can be used to represent the transmission means of transmission diversity in the Common search volume; In the UE specific search volume (that is, the proprietary search volume of above-mentioned subscriber equipment) of C-RNTI definition, DCI Format 1E can be used to represent the transmission means of individual layer transmission.Simultaneously, the transmission means of in publicly-owned and the proprietary search volume of user, representing double-deck transmission or individual layer transmission with another kind of descending control information format DCI Format 2B.
The transmission plan of table 5 pattern X
| UE downlink transfer pattern | The DCI form | The search volume | The corresponding PDSCH transmission plan of PDCCH |
| Pattern X | ??DCI?format?1A | ??Common | Transmission diversity (Transmit diversity) |
| UE downlink transfer pattern | The DCI form | The search volume | The corresponding PDSCH transmission plan of PDCCH |
| Pattern X | ??DCI?format?1E | The UE specific of C-RNTI definition | Individual layer transmission (Single-layer Beamforming) |
| Pattern X | ??DCI?format?2B | The UE specific of Common and C-RNTI definition | Double-deck transmission (Dual-layer Beamforming) or individual layer transmission |
The individual layer transmission of DCI Format 1E correspondence refers to the transmission means of single antenna port, for how indicating its antenna port that following two kinds of different configurations are arranged:
Configuration one:
The resource distribution mode of reusing among the DCI Format 1E is selected signaling, and the antenna port of correspondence is a port 7 when indicating the individual layer transmission, or port 8.For example, be designated single antenna port 7, be designated single antenna port 8 with " 1 " with " 0 "; Perhaps use " 1 " to be designated single antenna port 7, be designated single antenna port 8 with " 0 ".
Resource distribution mode among the table 6 DCI Format 1E is selected signaling
| Resource distribution mode is selected signaling | The antenna port of individual layer transmission |
| ??0 | Single antenna port 7 |
| ??1 | Single antenna port 8 |
Because under this configuration, DCI Format 1E is the same with the information field size that DCI Format 1A comprises, so DCI Format 1E equally also can be called DCI Format 1A under this configuration.
Configuration two:
The antenna port of correspondence when adopting 1 newly-increased bit to indicate the individual layer transmission.For example, be designated single antenna port 7, be designated single antenna port 8 with " 1 " with " 0 "; Perhaps use " 1 " to be designated single antenna port 7, be designated single antenna port 8 with " 0 ".
The signaling that 1 bit among the table 7 DCI Format 1E is newly-increased
| Newly-increased antenna port indication bit | The antenna port of individual layer transmission |
| ??0 | Single antenna port 7 |
| ??1 | Single antenna port 8 |
Embodiment two:
In the present embodiment, pattern X is the same with transmission plan in the UE specific search volume in the Common search volume respectively in embodiment one, when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, in the Common search volume, DCI Format 1A can be used to represent the transmission means of transmission diversity; In the UE specific search volume of C-RNTI definition, DCI Format 1E can be used to represent the transmission means of individual layer transmission.Simultaneously, the transmission means (as shown in table 5) of in publicly-owned and the proprietary search volume of user, representing double-deck transmission or individual layer transmission with another kind of descending control information format DCIFormat 2B.
But, also need 1 bit to indicate the initialized index N_scid of pilot frequency sequence when in the UE specific search volume of C-RNTI definition, in the transmission of sign individual layer, not only wanting 1 bit to distinguish antenna port with DCI Format 1E.Below be two kinds of different configurations:
Configuration one:
The resource distribution mode of reusing among the DCI Format 1E is selected signaling, and the antenna port of correspondence is a port 7 when indicating the individual layer transmission, or port 8.For example, be designated single antenna port 7, be designated single antenna port 8 (as shown in table 6) or be designated single antenna port 7, be designated single antenna port 8 with " 0 " with " 1 " with " 1 " with " 0 ".
Adopt 1 newly-increased bit to indicate the initialized index N_scid of pilot frequency sequence.For example, be designated N_scid=0, be designated N_scid=1 with " 1 " with " 0 ".Perhaps use " 1 " to be designated N_scid=0, be designated N_scid=1 with " 0 ".Wherein, resource distribution mode selects signaling and newly-increased antenna port indication bit can exchange use.
Table 8 adopts the newly-increased signaling indication N_scid of 1 bit
| Newly-increased N_scid indication bit | The initialized index N_scid of pilot frequency sequence |
| ??0 | ??0 |
| ??1 | ??1 |
Configuration two:
The antenna port and the initialized index N_scid of pilot frequency sequence of correspondence when adopting two newly-increased bits to indicate the individual layer transmission.
For first newly-increased bit, for example, be designated single antenna port 7 with " 0 ", be designated single antenna port 8 (as shown in table 6) or be designated single antenna port 7 with " 1 " with " 1 ", be designated single antenna port 8 with " 0 ".
For second newly-increased bit, for example, be designated N_scid=0 with " 0 ", be designated N_scid=1 (as shown in table 8) or be designated N_scid=0 with " 1 " with " 1 ", be designated N_scid=1 with " 0 ".Wherein, these two added bits can be exchanged use.
Embodiment three:
In the present embodiment, the transmission plan of pattern X in Common search volume and UE specific search volume described.When the cyclic check code in the descending control channel adopted the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, in the Common search volume, DCI Format1A can be used to represent the transmission means of transmission diversity; In the UEspecific search volume of C-RNTI definition, DCI Format 1E can be used to represent the transmission means of individual layer transmission or transmission diversity.Simultaneously, the transmission means of in publicly-owned and the proprietary search volume of user, representing double-deck transmission or individual layer transmission with another kind of descending control information format DCI Format2B.
The transmission plan of table 9 pattern X
| UE downlink transfer pattern | The DCI form | The search volume | The corresponding PDSCH transmission plan of PDCCH |
| Pattern X | ??DCI?format?1A | ?Common | Transmission diversity (Transmit diversity) |
| Pattern X | ??DCI?format?1E | The UE specific of C-RNTI definition | Individual layer transmission (Single-layer Beamforming) or transmission diversity |
| Pattern X | ??DCI?format?2B | The UE specific of Common and C-RNTI definition | Double-deck transmission (Dual-layer Beamforming) or individual layer transmission |
In DCI Format 1E, how to distinguish the transmission means of individual layer transmission or transmission diversity, and the antenna port during the individual layer transmission, following two kinds of different configurations are arranged:
Configuration one:
The resource allocation of reusing among the DCI Format 1E selects signaling to distinguish the transmission means of transmission diversity and individual layer transmission, for example, uses " 0 " to be designated the transmission means of transmission diversity, is designated the transmission means that individual layer transmits with " 1 "; Perhaps use " 0 " to be designated the transmission means of individual layer transmission, use " 1 " to be designated the transmission means of transmission diversity.
Table 10 resource allocation selects signaling to distinguish transmission diversity and individual layer transmission
| Signaling is selected in resource allocation | Transmission means |
| ??0 | Transmission diversity |
| ??1 | The individual layer transmission |
Antenna port when distinguishing the individual layer transmission with 1 newly-increased bit for example, is designated single antenna port 7 with " 0 ", and " 1 " is designated single antenna port 8; Perhaps use " 0 " to be designated single antenna port 8, " 1 " is designated single antenna port 7.Resource allocation selects signaling and newly-increased antenna port indication bit can exchange use.
The newly-increased signaling of table 11 1 bit is distinguished antenna port
| Newly-increased antenna port indication bit | The antenna port of individual layer transmission |
| ??0 | Antenna port 7 |
| ??1 | Antenna port 8 |
Configuration two:
Adopt two newly-increased bits to distinguish the transmission means of transmission diversity and individual layer transmission, and the antenna port during the individual layer transmission is port 7, or port 8.
For first newly-increased bit, for example, use " 0 " to be designated the transmission means of transmission diversity, be designated the transmission means that individual layer transmits with " 1 ", as shown in table 10.Perhaps, be designated the transmission means that individual layer transmits, be designated the transmission means of transmission diversity with " 1 " with " 0 ".
For second newly-increased bit, for example, be designated single antenna port 7 with " 0 ", " 1 " is designated single antenna port 8 (as shown in table 11) or is designated single antenna port 8 with " 0 ", and " 1 " is designated single antenna port 7.
These two added bits can be exchanged use.
Embodiment four:
In the present embodiment, as describing among the embodiment three, when the cyclic check code in the descending control channel adopted the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, in the Common search volume, DCI Format 1A can be used to represent the transmission means of transmission diversity; In the UE specific search volume of C-RNTI definition, DCI Format 1E can be used to represent the transmission means of individual layer transmission or transmission diversity.Simultaneously, the transmission means (as shown in table 9) of in publicly-owned and the proprietary search volume of user, representing double-deck transmission or individual layer transmission with another kind of descending control information format DCI Format 2B
But, also need 1 bit to indicate the initialized index N_scid of pilot frequency sequence when in the UE specific search volume of C-RNTI definition, in the transmission of sign individual layer, not only wanting 1 bit to distinguish antenna port with DCI Format 1E.Below be two kinds of different configurations:
Configuration one:
The resource allocation of reusing among the DCI Format 1E selects signaling to distinguish the transmission means of transmission diversity and individual layer transmission, for example, uses " 0 " to be designated the transmission means of transmission diversity, is designated the transmission means that individual layer transmits with " 1 ".As shown in table 10.Perhaps, be designated the transmission means that individual layer transmits, be designated the transmission means of transmission diversity with " 1 " with " 0 ".
Antenna port when distinguishing the individual layer transmission with first newly-increased bit, for example, be designated single antenna port 7 with " 0 ", " 1 " is designated single antenna port 8 (as shown in table 11) or is designated single antenna port 8 with " 0 ", and " 1 " is designated single antenna port 7.
Indicate the initialized index N_scid of pilot frequency sequence with second newly-increased bit, for example, be designated N_scid=0 with " 0 ", be designated N_scid=1 (as shown in table 8) or be designated N_scid=0, be designated N_scid=1 with " 0 " with " 1 " with " 1 ".
Resource allocation selects signaling and 2 newly-increased bits can exchange use.
Configuration two:
Adopt three newly-increased bits to indicate the transmission means of transmission diversity and individual layer transmission respectively, the antenna port during the individual layer transmission, and the initialized index N_scid of pilot frequency sequence.
For first newly-increased bit, for example, be designated the transmission means of transmission diversity with " 0 ", with " 1 " be designated the individual layer transmission transmission means (as shown in table 10) or, be designated the transmission means that individual layer transmits with " 0 ", be designated the transmission means of transmission diversity with " 1 ".
For second newly-increased bit, for example, be designated single antenna port 7 with " 0 ", " 1 " be designated single antenna port 8 (as shown in table 11) or, be designated single antenna port 8 with " 0 ", " 1 " is designated single antenna port 7.
For the 3rd newly-increased bit, for example, be designated N_scid=0 with " 0 ", be designated N_scid=1 with " 1 ".As shown in table 8.Perhaps, be designated N_scid=0, be designated N_scid=1 with " 0 " with " 1 ".
These three added bits can be exchanged use.
Embodiment five:
In the present embodiment, when the cyclic check code in the descending control channel adopts the scrambling of semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, in the UE specific search volume of Common and C-RNTI definition, DCI Format 1A can be used to represent the transmission means of individual layer transmission.Simultaneously, the transmission means of in publicly-owned and the proprietary search volume of user, representing double-deck transmission or individual layer transmission with another kind of descending control information format DCI Format 2B.
The transmission plan of table 12 DCI Format 1A
| UE downlink transfer pattern | The DCI form | The search volume | The corresponding PDSCH transmission plan of PDCCH |
| Pattern X | ??DCI?format?1A | The UE specific of Common and C-RNTI definition | Individual layer transmission (Single-layer Beamforming) |
| Pattern X | ??DCI?format?2B | The UE specific of Common and C-RNTI definition | Individual layer transmission (Single-layer Beamforming) |
How marker antenna port and the initialized index N_scid of pilot frequency sequence when transmitting for individual layer have following three kinds of configurations:
Configuration one:
The resource distribution mode of reusing among the DCI Format 1A is selected signaling, and the antenna port of correspondence is a port 7 when indicating the individual layer transmission, or port 8.For example, be designated single antenna port 7, be designated single antenna port 8 with " 1 " with " 0 ".As shown in table 6.Perhaps, be designated single antenna port 7, be designated single antenna port 8 with " 0 " with " 1 ".
And the initialized index N_scid of pilot frequency sequence will be defaulted as 0.
Configuration two:
The resource distribution mode of reusing among the DCI Format 1A is selected signaling, and the antenna port of correspondence is a port 7 when indicating the individual layer transmission, or port 8.For example, be designated single antenna port 7, be designated single antenna port 8 with " 1 " with " 0 ".As shown in table 6.Perhaps, be designated single antenna port 7, be designated single antenna port 8 with " 0 " with " 1 ".
HARQ Process Number (ID) signaling bit among the DCI Format 1A, the NDI signaling bit, the RV signaling bit, and the MSB signaling bit among the MCS is used as virtual cyclic redundancy check (CRC) (Virtual CRC) bit, reuse wherein any one, indicate the initialized index N_scid of pilot frequency sequence.Preferable, can select MSB bit among the MCS for use.For example, be designated N_scid=0, be designated N_scid=1 with " 1 " with " 0 "; Perhaps use " 1 " to be designated N_scid=0, be designated N_scid=1 with " 0 ".Resource distribution mode selects signaling and a virtual cyclic redundancy check bits can exchange use.
The MSB bit is distinguished N_scid among table 13 MCS
| MSB bit among the MCS | The initialized index N_scid of pilot frequency sequence |
| ??0 | ??0 |
| ??1 | ??1 |
Configuration three:
HARQ Process Number (ID) signaling bit among the DCI Format 1A, the NDI signaling bit, the RV signaling bit, and the MSB signaling bit among the MCS is used as virtual cyclic redundancy check (CRC) (Virtual CRC) bit, reuse any two bits wherein, the antenna port and the initialized index N_scid of pilot frequency sequence of correspondence when indicating the individual layer transmission respectively.
In sum, the present invention is directed to the pairing new transmission mode X of double-current Beamforming technology among the R9, when the cyclic check code in the descending control channel adopts Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (C-RNTI) scrambling, in publicly-owned search volume, define the transmission means that a kind of DCI Format 1A can identify transmission diversity, in the proprietary search volume of user, define a kind of DCI Format 1E and can represent the individual layer transmission, the transmission means of individual layer transmission and transmission diversity is perhaps arranged simultaneously; When the cyclic check code in the descending control channel adopts semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (SPS C-RNTI) scrambling, in publicly-owned and the proprietary search volume of user, define the transmission means that a kind of DCI Format 1A can represent the individual layer transmission.Such definition can allow transmission mode X adopt under the scene of C-RNTI scrambling at down control channel, the transmission means that can represent the individual layer transmission, owing to just in the proprietary search volume of user, increase a kind of DCI Format 1E newly, and in publicly-owned search volume, still use DCI Format 1A, also little to the influence of user's blind Detecting like this.
The embodiment of the invention provides a kind of method to set up of transmission mode, adopt the base station according to descending control information format, generate Downlink Control Information and send to subscriber equipment, wherein, descending control information format comprises descending control information format 1E, is used to represent the transmission means of individual layer transmission, perhaps comprises the transmission means of the transmission means of the transmission means of individual layer transmission and transmission diversity simultaneously, guarantee the flexibility of system call, made things convenient for practical application.
Need to prove, can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions, and, though there is shown logical order in flow process, but in some cases, can carry out step shown or that describe with the order that is different from herein.
Device embodiment
According to embodiments of the invention, a kind of transmitting device is provided, this device can be used to realize above-mentioned transmission method.Fig. 4 is the structured flowchart according to the transmitting device of the embodiment of the invention, and as shown in Figure 4, this device comprises: generation module 41, sending module 42.Below said structure is described in detail.
Particularly, when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, descending control information format 1E represents the transmission means of individual layer transmission in the proprietary search volume of subscriber equipment, the transmission means that perhaps comprises the transmission means of the transmission means of individual layer transmission and transmission diversity simultaneously, wherein, described individual layer transmission is meant the transmission means of single antenna port.
Particularly, below the signaling among the descending control information format 1E indication one of at least: the transmission means of individual layer transmission or the transmission means of transmission diversity; Antenna port when adopting the transmission means of individual layer transmission; Antenna port when adopting the transmission means of individual layer transmission is antenna port 7 or antenna port 8; Initialization index N_scid in the pilot frequency sequence design.
Wherein, the signaling among the descending control information format 1E comprise following one of at least: newly-increased K bit signalling, form 0 or form 1A select that signaling, resource distribution mode select signaling, signaling of resource block assignments, modulation coding mode signaling, hybrid automatic repeat request process to count signaling, new data is represented signaling, redundancy edition signaling, through-put power control signaling, allocation index signaling and cyclic redundancy check (CRC) signaling.
First sending module 42 is connected to first generation module 41, is used for sending the Downlink Control Information that first generation module 41 generates to subscriber equipment.
Then, subscriber equipment receives the Downlink Control Information from the base station, and obtains Downlink Control Information according to descending control information format.
Particularly, subscriber equipment receives Downlink Control Information, and obtain Downlink Control Information according to descending control information format and comprise: when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, subscriber equipment receives Downlink Control Information in publicly-owned search volume, and obtains Downlink Control Information according to descending control information format 1A; When the cyclic check code in the descending control channel adopted the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, subscriber equipment received Downlink Control Information in the proprietary search volume of subscriber equipment, and obtains Downlink Control Information according to descending control information format 1E; When the cyclic check code in the descending control channel adopts the scrambling of semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, subscriber equipment receives Downlink Control Information in publicly-owned search volume and the proprietary search volume of subscriber equipment, and obtains Downlink Control Information according to descending control information format 1A.
Need to prove that the setting device of the transmission mode of describing among the device embodiment is corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, do not repeat them here.
In sum, according to the abovementioned embodiments of the present invention, in order to support dual-stream beamforming (Beamforming) technology among the LTE-A R9, a kind of method to set up and device of transmission mode are provided, adopt the base station according to descending control information format, generate Downlink Control Information and send to subscriber equipment, wherein, when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, descending control information format can be represented the individual layer transmission, and the transmission means of individual layer transmission and transmission diversity is perhaps arranged simultaneously; When the cyclic check code in the descending control channel adopted the scrambling of semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, descending control information format can be represented the transmission means of individual layer transmission.In addition, the embodiment of the invention is on the basis of the DCI of R8 Format 1A, a kind of new DCIFormat 1E of definition, though need to increase corresponding signaling, perhaps change original resource distribution mode and select the implication of signaling, but because it just is used in the proprietary search volume of user, used the DCI Format 1A among the R8 and prolong in the publicly-owned search volume, so the influence that the performance of the system of giving is brought is little.Therefore, the present invention has guaranteed the flexibility of system call, has made things convenient for practical application.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the method to set up of a transmission mode is characterized in that, comprising:
The base station is according to the descending control information format in the described transmission mode, generate Downlink Control Information, wherein, described descending control information format comprise following one of at least: descending control information format 1A, descending control information format 1E and descending control information format 2B;
Described base station sends described Downlink Control Information to subscriber equipment.
2. method according to claim 1, it is characterized in that, when the cyclic check code in the descending control channel adopts the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, described descending control information format 1E represents the transmission means of described individual layer transmission in the proprietary search volume of subscriber equipment, the transmission means of the transmission means of perhaps described transmission means that comprises described individual layer transmission simultaneously and described transmission diversity.
3. method according to claim 1 is characterized in that, below the indication of signaling among the described descending control information format 1E one of at least:
Antenna port when adopting the transmission means of described individual layer transmission;
Antenna port when adopting the transmission means of described individual layer transmission, and the initialization index N_scid in the pilot frequency sequence design;
Adopt the transmission means of described individual layer transmission or the transmission means of described transmission diversity, and the antenna port the during transmission means of individual layer transmission;
Adopt the transmission means of described individual layer transmission or the transmission means of described transmission diversity, the antenna port the during transmission means of described individual layer transmission, and the initialization index N_scid in the pilot frequency sequence design.
4. method according to claim 3 is characterized in that, the described signaling among the described descending control information format 1E comprises:
Newly-increased K bit signalling, form 0 or form 1A select signaling, resource distribution mode selection signaling, signaling of resource block assignments, modulation coding mode signaling, hybrid automatic repeat request process to count signaling, new data is represented signaling, redundancy edition signaling, through-put power control signaling, allocation index signaling and cyclic redundancy check (CRC) signaling.
5. method according to claim 4 is characterized in that, it is one of following that described descending control information format 1E utilizes the signaling among the described descending control information format 1E to indicate to comprise:
When described descending control information format 1E is used to represent the transmission means of described individual layer transmission, the described antenna port when described descending control information format 1E utilizes described resource distribution mode to select signaling or the newly-increased signaling of 1 bit to indicate the transmission means that adopts described individual layer transmission;
When described descending control information format 1E is used to represent the transmission means of described individual layer transmission, described descending control information format 1E utilizes described resource distribution mode to select signaling and the described newly-increased signaling of 1 bit, described antenna port when perhaps adopting the described newly-increased signaling of 2 bits to indicate the transmission means that adopts described individual layer transmission and the described initialization index N_scid in the design of described pilot frequency sequence;
When described descending control information format 1E is used to represent the transmission means of transmission means of described transmission means that comprises described individual layer transmission simultaneously and described transmission diversity, described descending control information format 1E utilizes described resource distribution mode to select signaling and the described newly-increased signaling of 1 bit, perhaps adopt the described newly-increased signaling of 2 bits to indicate the transmission means of described individual layer transmission or the transmission means of described transmission diversity, the described antenna port when adopting the transmission means of described individual layer transmission is described antenna port 7 or described antenna port 8;
When described descending control information format 1E is used to represent to comprise simultaneously the transmission means of transmission means of the transmission means of described individual layer transmission and described transmission diversity, described descending control information format 1E utilizes described resource distribution mode to select signaling and the described newly-increased signaling of 2 bits, perhaps adopts the described newly-increased signaling of 3 bits to indicate the transmission means of described individual layer transmission or the transmission means of described transmission diversity, described antenna port when adopting the transmission means of described individual layer transmission is the described initialization index N_scid in described antenna port 7 or described antenna port 8 and the design of described pilot frequency sequence.
6. method according to claim 1, it is characterized in that, when the described cyclic check code in the described down control channel adopted described Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, described descending control information format 1A represented the transmission means of described transmission diversity in described publicly-owned search volume.
7. method according to claim 1, it is characterized in that, when the described cyclic check code in the described down control channel adopted the scrambling of semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, described descending control information format 1A represented the transmission means of described individual layer transmission in described publicly-owned search volume and the proprietary search volume of described subscriber equipment.
8. method according to claim 7 is characterized in that, below the indication of signaling among the described descending control information format 1A one of at least:
Antenna port when adopting the transmission means of described individual layer transmission;
Antenna port when adopting the transmission means of described individual layer transmission, and the initialization index N_scid in the design of described pilot frequency sequence.
9. method according to claim 8 is characterized in that, the described signaling among the described descending control information format 1A comprises:
Form 0 or form 1A select signaling, resource distribution mode is selected signaling, signaling of resource block assignments, the modulation coding mode signaling, hybrid automatic repeat request process is counted signaling, new data indication signaling, redundancy edition signaling, through-put power control signaling, descending allocation index signaling and cyclic redundancy check (CRC) signaling.
10. method according to claim 9 is characterized in that, described descending control information format 1A utilizes the described signaling among the described descending control information format 1A to indicate to comprise:
Described antenna port when described descending control information format 1A utilizes the described resource distribution mode selection signaling among the described descending control information format 1A to indicate the transmission means that adopts described individual layer transmission;
Described antenna port when described descending control information format 1A utilizes the described resource distribution mode among the described descending control information format 1A to select signaling and following one of any signaling indication to adopt the transmission means of described individual layer transmission and the described initialization index N_scid in the design of described pilot frequency sequence: described hybrid automatic repeat request process is counted signaling, described new data is represented the highest significant position signaling in signaling, described redundancy edition signaling, the described modulation coding mode;
Described antenna port when described descending control information format 1A utilizes following any two signalings indication among the described descending control information format 1A to adopt the transmission means of described individual layer transmission and the described initialization index N_scid in the design of described pilot frequency sequence: described hybrid automatic repeat request process is counted signaling, described new data and is represented in the highest significant position signaling in signaling, described redundancy edition signaling, the described modulation coding mode.
11., it is characterized in that after described subscriber equipment sent described Downlink Control Information, described method also comprised in described base station according to each described method in the claim 1 to 10:
Described subscriber equipment receives described Downlink Control Information from described base station according to described transmission mode, and obtains described Downlink Control Information according to described descending control information format.
12. method according to claim 11 is characterized in that, described subscriber equipment receives described Downlink Control Information, and obtains described Downlink Control Information according to described descending control information format and comprise:
When the described cyclic check code in the described down control channel adopts described Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, described subscriber equipment receives described Downlink Control Information in described publicly-owned search volume, and obtains described Downlink Control Information according to described descending control information format 1A;
When the described cyclic check code in the described down control channel adopts described Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, described subscriber equipment receives described Downlink Control Information in the proprietary search volume of described subscriber equipment, and obtains described Downlink Control Information according to described descending control information format 1E;
When the described cyclic check code in the described down control channel adopts described semi-persistent scheduling Cell Radio Network Temporary Identifier/Identity, Cell-RNTI scrambling, described subscriber equipment receives described Downlink Control Information in described publicly-owned search volume and the proprietary search volume of described subscriber equipment, and obtains described Downlink Control Information according to described descending control information format 1A.
13. the setting device of a transmission mode is characterized in that, comprising:
First generation module, be used for descending control information format according to described transmission mode, generate Downlink Control Information, wherein, described descending control information format comprise following one of at least: descending control information format 1A, descending control information format 1E and descending control information format 2B;
First sending module is used for sending described Downlink Control Information to subscriber equipment.
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| CN200910209642A CN101715211A (en) | 2009-11-02 | 2009-11-02 | Method and device for setting transmission mode |
| PCT/CN2010/074812 WO2010145614A1 (en) | 2009-11-02 | 2010-06-30 | Configuration method and device for transmission modes |
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